/* Copyright (C) 2008-2015 Free Software Foundation, Inc. Contributor: Joern Rennecke on behalf of Synopsys Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see . */ #include "arc-ieee-754.h" /* inputs: r0, r1 output: z flag clobber: r12, flags For NaNs, bit 22 .. bit 30 must be set. */ #if 0 /* DEBUG */ .global __eqsf2 .balign 4 FUNC(__eqsf2) __eqsf2: st.a r11,[sp,-4]` push_s blink` st.a r10,[sp,-4]` st.a r9,[sp,-4] st.a r8,[sp,-4]` st.a r7,[sp,-4]` st.a r6,[sp,-4]` st.a r5,[sp,-4] st.a r4,[sp,-4]` push_s r3` push_s r2` push_s r1` bl.d __eqsf2_c` push_s r0 mov r11,r0` pop_s r0` pop_s r1` pop_s r2` pop_s r3 ld.ab r4,[sp,4]` ld.ab r5,[sp,4]` ld.ab r6,[sp,4]` ld.ab r7,[sp,4]` ld.ab r8,[sp,4]` ld.ab r9,[sp,4] bl.d __eqsf2_asm` ld.ab r10,[sp,4] pop_s blink breq.d r11,0,0f ld.ab r11,[sp,4] jne_s [blink] bl abort 0: jeq_s [blink] bl abort ENDFUNC(__eqsf2) #define __eqsf2 __eqsf2_asm #endif /* DEBUG */ /* Good performance as long as the binary difference is well predictable (as seen from the branch predictor). */ .global __eqsf2 .balign 4 HIDDEN_FUNC(__eqsf2) __eqsf2: breq r0, r1,.Lno_bdiff or r12,r0,r1 j_s.d [blink] bmsk.f 0,r12,30 .Lno_bdiff: bmsk r12,r0,23 add1.f r12,r12,r0 /* set c iff NaN; also, clear z if NaN. */ j_s.d [blink] cmp.cc r0,r1 ENDFUNC(__eqsf2)